The book is now available! 4621
(another Prime Pages' Curiosity)
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Participate: 		+ The sum of all minimal primes in base 5 is prime. [Rupinski]

+ 4621 is the (4*6*2*1*(4+6+2+1))th prime. Note that 4621 is the smallest such prime. [Firoozbakht]

+ The larger prime factor of the (conjectured) smallest Sierpinski number (78557). Ironically, the previous prime (4603) is the larger prime factor of the second composite Sierpinski number (271577).

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